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Deep blue like the depths of the ocean, the Trek Precaliber 20 Freewheel Marianas Blue focuses on the essentials: Alpha Silver aluminium frame, steel fork, 20-inch wheels and a single freewheel gear. It weighs 9.45 kg according to Trek, making it the lightest of the Precaliber 20 bikes. It is designed for children from 114 to 132 cm.
| Frame | Alpha Silver aluminium, 20-inch kids' frame |
| Fork | Rigid steel, 1.125-inch straight steerer |
| Drivetrain | 1-speed freewheel: ProWheel 127 mm alloy chainset, 32-tooth steel chainring with double guard, 18-tooth sprocket |
| Brakes | Two alloy linear-pull brakes (V-brake) |
| Wheels / tyres | 20-inch alloy rims, 32 spokes, Schrader valve / Bontrager XR1 20 x 2.25-inch |
| Cockpit | 560 mm steel handlebar, 40 mm rise, 60 mm Bontrager stem, 107 mm grips |
| Saddle / seatpost | Padded kids' saddle with integrated seatpost and handle |
| Equipment | Kickstand, kids' satellite pedals |
| Weight | 9.45 kg, one size (Trek figure) |
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At a glance
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For the 6 to 8 year old who wants to ride fast on cycle lanes and flat tracks, and for parents looking for a bike that is light enough to carry up the stairs or load into the car.
Alpha Silver, this time on a real big-kid bike. The Alpha Silver aluminium frame of the Precaliber 20 Freewheel comes with a rigid steel fork, 20-inch wheels with 32 spokes and a ProWheel 127 mm chainset whose 32-tooth chainring has a double guard. A single gear and no derailleur cable: the bike stays simple to maintain and your child can concentrate on balance and braking.
| Precaliber 16 | Precaliber 20 Freewheel | Precaliber 20 7-speed | |
| Stage | The independence bike | Transition with no gears | First gears |
| Frame / fork | Alloy / steel | Alpha Silver alloy / steel | Alpha Silver alloy / 35 mm fork |
| Reference bike | 8.35 kg, 99 to 117 cm | 9.45 kg, 114 to 132 cm | 10.90 kg, 114 to 132 cm |
| What it means | Stabilisers possible | Lighter, nothing to adjust | More versatile, heavier |
In other words: 9.45 kg, a single freewheel gear, two V-brakes on the handlebar and a kickstand fitted as standard. Trek presents it as the transition model after the stabiliser bike, for 6 to 8 year olds.
Weight matters a lot on a kids' bike: 9.45 kg is a large share of a 7-year-old's body weight. Every kilo saved is felt when setting off, on hills and when the bike has to be picked up. With no derailleur or suspension fork, the Freewheel keeps the advantage on this point.
The 2.25-inch Bontrager XR1 tyres, fitted to 32-spoke alloy rims, offer a good balance between efficiency on tarmac and grip on dirt tracks. They are well suited to the flat paths that skirt the lagoons or run along the Canal du Midi towards Fonseranes.
| Model | Wheels | Child's height | Gears / brakes | Weight |
| Precaliber 16 | 16 in | 99 to 117 cm | 1 speed, 2 V-brakes | 8.35 kg |
| Precaliber 20 Freewheel | 20 in | 114 to 132 cm | 1 speed, 2 V-brakes | 9.45 kg |
| Precaliber 20 7-speed | 20 in | 114 to 132 cm | 7 speeds, 2 V-brakes, 35 mm fork | 10.90 kg |
| Wahoo 20 Path | 20 in | 114 to 132 cm | 8-speed microSHIFT, 2 V-brakes | 8.75 kg |
Our take: at 9.45 kg, this 20-inch bike is 1.45 kg lighter than the 7-speed Precaliber 20. The Wahoo 20 Path goes down further still to 8.75 kg with 8 microSHIFT gears, for sportier riding.
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LVR sizing advice Trek gives a range of 114 to 132 cm, for 6 to 8 year olds. On a first 20-inch bike, it is best if your child can still touch the ground with the tips of both feet when seated. Come and try it with them in Béziers: we adjust the saddle height before you set off.
Source: Trek size guide. Bike fitting available in our Béziers shop. |
| Is it suitable for the school run? | Yes, on flat ground; it is light and easy to park thanks to the kickstand. |
| Can the bike be carried? | Yes, 9.45 kg is still easy for an adult to carry. |
| Are the tyres suitable for tracks? | Yes, on dirt and smooth gravel. |
| Is the blue dark? | Yes, it is a deep, elegant midnight blue. |
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The LVR Cycles verdict The lightest Precaliber 20, simple and easy to live with day to day. Its deep midnight blue gives it an elegant, almost adult-bike look.
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Why buy from LVR Cycles? Our Béziers workshop prepares the bike, sets the brakes and saddle with your child and looks after it as they grow.
Data sheet
Specific References